diff --git a/main.cpp b/main.cpp
index 9046e46d48..25f5fae984 100644
--- a/main.cpp
+++ b/main.cpp
@@ -247,13 +247,6 @@ void Application::crashChecking()
     QTimer::singleShot(15 * 1000, this, SLOT(resetCrashesCount()));
 }
 
-bool Application::notify(QObject* o, QEvent* e)
-{
-    if (Workspace::self()->workspaceEvent(e))
-        return true;
-    return QApplication::notify(o, e);
-}
-
 void Application::crashHandler(int signal)
 {
     crashes++;
diff --git a/main.h b/main.h
index 1822afce60..1ea9c1c1d8 100644
--- a/main.h
+++ b/main.h
@@ -205,7 +205,6 @@ protected:
     }
     void destroyAtoms();
 
-    bool notify(QObject* o, QEvent* e);
     static void crashHandler(int signal);
 
 protected:
diff --git a/main_x11.cpp b/main_x11.cpp
index a0644bca3a..43d7477945 100644
--- a/main_x11.cpp
+++ b/main_x11.cpp
@@ -23,6 +23,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include <config-kwin.h>
 // kwin
 #include "sm.h"
+#include "workspace.h"
 #include "xcbutils.h"
 
 // KDE
@@ -191,6 +192,13 @@ void ApplicationX11::performStartup()
     createAtoms();
 }
 
+bool ApplicationX11::notify(QObject* o, QEvent* e)
+{
+    if (Workspace::self()->workspaceEvent(e))
+        return true;
+    return QApplication::notify(o, e);
+}
+
 } // namespace
 
 extern "C"
diff --git a/main_x11.h b/main_x11.h
index ef3c44464f..ca25bf486a 100644
--- a/main_x11.h
+++ b/main_x11.h
@@ -50,6 +50,7 @@ public:
 
 protected:
     void performStartup() override;
+    bool notify(QObject *o, QEvent *e) override;
 
 private Q_SLOTS:
     void lostSelection();